Back massager attachment



FIG. 1 is a front perspective view of a back massager attachment showing my new design;

FIG. 2 is a front elevational view of a back massager attachment;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view, the other side elevational view being identical thereto;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof.

The broken lines are shown for illustrative purposes only. 

The ornamental design of a back massager attachment, as shown and described. 